I have a glycol chiller that connects to a temp twister coil inside of my fermenter and the temperature probe from the chiller is inside a thermowell that goes down parallel to the coil, approximately 3 inches away. I also have a Tilt hydrometer inside the fermenter. My chiller has no problem...
your expected ABV would have been (1.060-1.020)*131.25=5.2%. Actual ABV is (1.053-1.0096)*131.25=5.7%.
There is more difference between the actual OG and FG (1.06-1.02=.04) than the estimated numbers (1.053-1.0096=.0434), which means more sugar was eaten and more alcohol produced.
I provide my spent grains to a coworker and it sometimes takes a couple weeks to coordinate a time to pass them off. I’ve had them get really smelly and moldy and the chickens could care less. He tells me they will eat just about anything.
I have a 3 vessel HERMS system and I fly sparge. I have never worried about the amount of sparge water that I transfer from the HLT because I've only been concerned about hitting my boil volume. My question is whether this is the better process, or would I increase my extraction by only sparging...